Package org.apache.jena.sparql.core

Class DatasetGraphZero

java.lang.Object

org.apache.jena.sparql.core.DatasetGraphBase

org.apache.jena.sparql.core.DatasetGraphBaseFind

org.apache.jena.sparql.core.DatasetGraphNull

org.apache.jena.sparql.core.DatasetGraphZero

All Implemented Interfaces:

org.apache.jena.atlas.lib.Closeable, DatasetGraph, Transactional

public class DatasetGraphZero
extends DatasetGraphNull

An always empty DatasetGraph. One graph (the default graph) with zero triples. No changes allowed - this is not a sink.

See Also:

DatasetGraphSink

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.jena.sparql.core.Transactional

Transactional.Promote

Constructor Summary

Constructors

Constructor	Description
DatasetGraphZero()

Method Summary

Modifier and Type	Method	Description
static DatasetGraph	create()	Invariant DatasetGraph; it does have transaction state so new object here.
PrefixMap	prefixes()	Prefixes for this DatasetGraph

Methods inherited from class org.apache.jena.sparql.core.DatasetGraphNull

abort, add, addGraph, begin, begin, begin, commit, delete, deleteAny, end, getDefaultGraph, getGraph, getUnionGraph, isInTransaction, listGraphNodes, promote, removeGraph, setDefaultGraph, supportsTransactionAbort, supportsTransactions, transactionMode, transactionType

Methods inherited from class org.apache.jena.sparql.core.DatasetGraphBaseFind

find, findInUnionGraph, findNG, findQuadsInUnionGraph

Methods inherited from class org.apache.jena.sparql.core.DatasetGraphBase

add, clear, close, contains, contains, containsGraph, delete, deleteAny, find, find, getContext, getLock, isEmpty, size, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.jena.sparql.core.DatasetGraph

addAll

Methods inherited from interface org.apache.jena.sparql.core.Transactional

calc, calculate, calculateRead, calculateWrite, exec, execute, executeRead, executeWrite, promote

Constructor Detail

DatasetGraphZero

public DatasetGraphZero()

Method Detail

create

public static DatasetGraph create()

Invariant DatasetGraph; it does have transaction state so new object here.

prefixes

public PrefixMap prefixes()

Description copied from interface: DatasetGraph

Prefixes for this DatasetGraph